Filter Media Roll, Media Roll Length 65 ft., Media Roll Width 43-7/8 In., Nominal Thickness 1/2 In., Air Filter Media Type Polyester, Actual Thickness 1/4 In., Air Filter Color White, Frame Included No, MERV 6, Initial Resistance 0.14 In. WC, Final Resistance 0.50 In. WC, Standards UL Class 2, For Use With Designed to fit the Type C Core. Type C is Continental In.Conomnual In. or In.Conomatic In.